Stay updated with real-time air quality in Pekin, Illinois featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
71
Moderate
Pekin, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
19.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
85.83 μg/m³
0
55
155
255
425
605+
21.66 ppb
0
55
71
86
201
201+
0.91 ppb
0
36
76
186
605
1005+
6.79 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pekin, Illinois
Pekin, Illinois
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AQI 69
Moderate
19.33μg/m³
PM2.5
88.14μg/m³
PM10
20.03ppb
O3
0.93ppb
SO2
6.65ppb
NO2
0.20ppm
CO
AQI 69
Moderate
19.13μg/m³
PM2.5
85.32μg/m³
PM10
21.94ppb
O3
0.93ppb
SO2
6.66ppb
NO2
0.20ppm
CO
AQI 77
Moderate
14.12μg/m³
PM2.5
107.70μg/m³
PM10
22.91ppb
O3
0.92ppb
SO2
6.76ppb
NO2
0.20ppm
CO
AQI 76
Moderate
13.87μg/m³
PM2.5
104.60μg/m³
PM10
19.99ppb
O3
0.93ppb
SO2
6.68ppb
NO2
0.20ppm
CO
AQI 71
Moderate
15.17μg/m³
PM2.5
94.62μg/m³
PM10
20.36ppb
O3
0.90ppb
SO2
5.64ppb
NO2
0.21ppm
CO
AQI 52
Moderate
10.07μg/m³
PM2.5
41.50μg/m³
PM10
22.26ppb
O3
0.88ppb
SO2
7.07ppb
NO2
0.20ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Pekin, Illinois are available every hour.
Pekin, Illinois experienced its worst air quality at 09:00:00, 2025-07-14.
The best air quality in Pekin, Illinois was observed at 04:00:00 on 2025-07-14.
The air quality in Pekin, Illinois right now is Moderate, with an AQI of 71.
In Pekin, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Pekin, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Pekin, Illinois currently has a PM2.5 concentration of 19.583 μg/m3.
Pekin, Illinois currently has a PM10 concentration of 85.834 μg/m3.
The current carbon monoxide (CO) level in Pekin, Illinois is 0.203 ppm.
The current sulfur dioxide (SO2) concentration in Pekin, Illinois is 0.91 ppb.
Pekin, Illinois currently has an ozone (O3) concentration of 21.665 ppm.
The current level of nitrogen dioxide (NO2) in Pekin, Illinois is 6.789 ppb.
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